Climate change is complex

Climate change is complex. We've got answers for you is a New York Times initiative to answer some of the most common questions about climate change.

How do we know humans are responsible?
Is recent crazy weather tied to climate change?
Are there any realistic solutions to the problem?
Some things about climate change are simple, and some are complex. The New York Times new climate change Q. and A respond to a number of often-asked questions with short, straightforward answers.